Synnefo » Pithos iOS Client

//

//  ActivityIndicatorView.m

//  OpenStack

//

//  Created by Mike Mayo on 10/9/10.

//  The OpenStack project is provided under the Apache 2.0 license.

//

#import "ActivityIndicatorView.h"

#import <QuartzCore/QuartzCore.h>

#import "AnimatedProgressView.h"

#define kFadeTime 0.25

#define kFontSize 14.0

#define kCornerRadius 7

#define kSpinnerStyle UIActivityIndicatorViewStyleWhite

@implementation ActivityIndicatorView

@synthesize progressView, spinner;

#pragma mark - Object lifecycle

- (id)initWithFrame:(CGRect)frame text:(NSString *)text withProgress:(BOOL)withProgress {

    if ((self = [super initWithFrame:frame])) {

        // border color

        self.backgroundColor = [UIColor colorWithRed:0.498 green:0.498 blue:0.498 alpha:1.0];

        self.layer.cornerRadius = kCornerRadius;

        CGRect contentFrame = CGRectInset(self.bounds, 2, 2);

        UIView *contentView = [[[UIView alloc] initWithFrame:contentFrame] autorelease];

        contentView.backgroundColor = [UIColor colorWithRed:0.198 green:0.198 blue:0.198 alpha:1.0];

        contentView.layer.cornerRadius = kCornerRadius;

        [self addSubview:contentView];

        [self sendSubviewToBack:contentView];

        self.spinner = [[[UIActivityIndicatorView alloc] initWithActivityIndicatorStyle:kSpinnerStyle] autorelease];

        self.spinner.frame = CGRectMake(19.0, 10.0, 20.0, 20.0);

        [self.spinner startAnimating];

        [self addSubview:self.spinner];

        UILabel *label = [[[UILabel alloc] initWithFrame:CGRectMake(45.0, 5.0, contentFrame.size.width, 30.0)] autorelease];

        label.textColor = [UIColor whiteColor];

        label.backgroundColor = [UIColor clearColor];

        label.text = text;

        label.font = [UIFont systemFontOfSize:kFontSize];

        [self addSubview:label];

        if (withProgress) {

            self.progressView = [[[AnimatedProgressView alloc] initWithProgressViewStyle:UIProgressViewStyleBar] autorelease];

            self.progressView.frame = CGRectMake(10.0, 40.0, frame.size.width - 20.0, 10.0);

            [self addSubview:progressView];

        }

    }

    return self;

}

- (id)initWithFrame:(CGRect)frame text:(NSString *)text {

    return [self initWithFrame:frame text:text withProgress:NO];

}

- (id)initWithText:(NSString *)text withProgress:(BOOL)withProgress {

    return [self initWithFrame:[self frameForText:text withProgress:withProgress] text:text withProgress:withProgress];

}

- (id)initWithText:(NSString *)text {

    return [self initWithText:text withProgress:NO];

}

+ (id)activityIndicatorViewWithText:(NSString *)text withProgress:(BOOL)withProgress {

    return [[[self alloc] initWithText:text withProgress:withProgress] autorelease];

}

+ (id)activityIndicatorViewWithText:(NSString *)text {

        return [self activityIndicatorViewWithText:text withProgress:NO];

}

+ (id)activityIndicatorViewWithText:(NSString *)text withProgress:(BOOL)withProgress andAddToView:(UIView *)view scrollOffset:(CGFloat)offset {

    ActivityIndicatorView *activityIndicatorView = [self activityIndicatorViewWithText:text withProgress:withProgress];

    [activityIndicatorView addToView:view scrollOffset:offset];

    return activityIndicatorView;

}

+ (id)activityIndicatorViewWithText:(NSString *)text withProgress:(BOOL)withProgress andAddToView:(UIView *)view {

    return [self activityIndicatorViewWithText:text withProgress:withProgress andAddToView:view scrollOffset:0.0];

}

+ (id)activityIndicatorViewWithText:(NSString *)text andAddToView:(UIView *)view scrollOffset:(CGFloat)offset {

    return [self activityIndicatorViewWithText:text withProgress:NO andAddToView:view scrollOffset:offset];

}

+ (id)activityIndicatorViewWithText:(NSString *)text andAddToView:(UIView *)view {

    return [self activityIndicatorViewWithText:text withProgress:NO andAddToView:view scrollOffset:0.0];

}

#pragma mark - View lifecycle

- (void)didMoveToSuperview {

    [super didMoveToSuperview];

    self.superview.userInteractionEnabled = NO;

}

#pragma mark - Memory management

- (void)dealloc {

    [progressView release];

    [spinner release];

    [super dealloc];

}

#pragma mark - Internal

- (CGRect)frameForText:(NSString *)text withProgress:(BOOL)withProgress {

    CGSize textSize = [text sizeWithFont:[UIFont systemFontOfSize:kFontSize]

                       constrainedToSize:CGSizeMake(300.0f, 9000.0f)

                           lineBreakMode:UILineBreakModeWordWrap];

    CGFloat baseWidth = 62.0;

    CGFloat width = baseWidth + textSize.width;

    CGFloat x = (320.0 - width) / 2;

    return CGRectMake(x, 146.0, width, withProgress ? 60.0 : 40.0);

}

#pragma mark - Actions

- (void)addToView:(UIView *)view scrollOffset:(CGFloat)offset {

    self.alpha = 0.0;

    [view addSubview:self];

    self.center = view.center;

    // if it's a scroll view, move the frame down

    CGRect newFrame = self.frame;

    newFrame.origin.y = 146.0 + offset;

    self.frame = newFrame;

    [UIView animateWithDuration:kFadeTime animations:^{

        self.alpha = 1.0;

    }];

}

- (void)addToView:(UIView *)view {

    [self addToView:view scrollOffset:0.0];

}

- (void)removeFromSuperview {

    [self.spinner stopAnimating];

    [UIView animateWithDuration:kFadeTime animations:^{

        self.alpha = 0.0;

    } completion:^(BOOL finished) {

        self.superview.userInteractionEnabled = YES;

        [super removeFromSuperview];

    }];    

}

@end